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52015065517 = 394191319543
BaseRepresentation
bin110000011100010101…
…101110100110101101
311222021000112002212001
4300130111232212231
51323011324044032
635521223212301
73520660522222
oct603425564655
9158230462761
1052015065517
112007216a658
12a0b78a7091
134b9c39049c
1427361cb949
1515467313e7
hexc1c56e9ad

52015065517 has 4 divisors (see below), whose sum is σ = 52016424480. Its totient is φ = 52013706556.

The previous prime is 52015065511. The next prime is 52015065523. The reversal of 52015065517 is 71556051025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (52015065511) and next prime (52015065523).

It is a cyclic number.

It is not a de Polignac number, because 52015065517 - 235 = 17655327149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52015065511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620353 + ... + 699190.

It is an arithmetic number, because the mean of its divisors is an integer number (13004106120).

Almost surely, 252015065517 is an apocalyptic number.

It is an amenable number.

52015065517 is a deficient number, since it is larger than the sum of its proper divisors (1358963).

52015065517 is a wasteful number, since it uses less digits than its factorization.

52015065517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358962.

The product of its (nonzero) digits is 52500, while the sum is 37.

The spelling of 52015065517 in words is "fifty-two billion, fifteen million, sixty-five thousand, five hundred seventeen".

Divisors: 1 39419 1319543 52015065517